[Flingarrows]

I am asking this for a guy from work, who is a good mechanic on the older engines and transmissions, but doesnt work on the newer equipment.

he owns a 95 chevy 3500 dump truck with an auto which he says is a 700r4, electronically controlled. Ive been told by someone else, that is actually a 4L80E

intermittently the tach and speedo go dead and the trans down shifts, and wont shift up. he says that it only happens when warm.

any ideas? what additional information should i ask for?


If this is in the wrong forum, just let me know, I'll delete and repost in the proper place